It's by far not as bad as you imagine. And his imagination tells a lot about how things are going in life for somebody...

The protection that tripped was in the power supply and involves a current sense transformer with 200 turns and inherent antenna properties. Ironically, this transformer is working at mains frequency, it's a linear circuit involving op-amps and a PIC. It's calling for a couple of ferrite beads and caps to avoid rectification of ambient RF in the input LTP of a bipolar op-amp.

Protection against wrong oscillation modes is very useful as the product ages. Imagine the result of an open feedback resistor or a cold joint somewhere. Bang! or immediate shutdown.

btw: No, it does not make funny noises unless the phone is placed crazy close to the modulator

btw2: That's without an enclosure, bare pcbs on a wood bench

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I use to feel like the small child in The Emperor's New Clothes tale